<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
		<title></title>
		<script src="js/vue.min.js" type="text/javascript" charset="utf-8"></script>
		
	</head>

	<body>
		<div id="div1">
			<p v-if="value=='a'">a</p>
			<p v-else-if="value=='b'">b</p>
			<p v-else>c</p>
		</div>

	</body>
		<script type="text/javascript">
			var vm = new Vue({
				el:"#div1",
				data:{
					value:"n"
				}
			})
		</script>
</html>